502 copies of questionnaires

Conduct questionnaire surveys to determine the degree of stakeholder concern over the various types of sustainability issues so that stakeholders can express their needs in terms of sustainable information.

74 sustainability issues

Adopt the GRI G 4.0 guidelines, ISO 26000 social responsibility standard guidelines, UN Global Compact, and domestic and international sustainability assessments as the basis for issues.

42 categories of sustainability issues

Members of the Corporate Sustainability Committee Report Group compiles and analyzes issues.

33 material issues

Multiply the score for degree of stakeholder concern over each issue and the score for its respective impact on company operation. Rank issues for disclosure.

3 major material issues

*Following materiality analysis, the company discusses and decides on the disclosure ranking of sustainability issues.
*The Sustainability Committee shall conduct management review for material issues related to the economy, environment, and society.

11,963 Patents

In 2016, UMC was awarded 689 domestic and foreign patents, totaling 11,963 patents to date.

86.6% Client Satisfactory

Customer satisfaction levels gradually increase every year.

5.2% Annual Increase in Product Manufacturing Volume

Annual product manufacturing volume of approximately 6,172,000 in 8" wafer equivalents, with an annual increase rate of 5.2%.

1st ISO 22301 Certification

First wafer foundry in Taiwan 1st ISO 22301 Certification First wafer foundry in Taiwan to pass ISO 22301 operation sustainability management certification for supplying chips used in automobiles.

28% More in Ammonia and Nitrogen Concentration Reduction for Wastewater

Owing to ammonia source reduction, ammonia and nitrogen concentration in wastewater was reduced by 28%~63%, which saved annual raw material cost of NT$ 48 million and annual wastewater treatment cost of approximately NT$ 180 million.

67,212Mwh Power Reduction

The newly added reduction for 2016 was 67,212 Mwh, which is equivalent to a decrease of 35,488 tons in CO2 emissions and a savings of about NT$ 155 million.

15,628Mwh Natural Gas Reduction

the targeted goal, which is equivalent to a decrease of 3,074 tons in CO2 emissions and a savings of about NT$ 19,750,000.

472,000Tons of Reduction in Water Usage

The newly added reduction for 2016 was 472,000 tons, reaching the targeted goal, which is equivalent to a savings of about NT$ 11,800,000.

3,610Tons of Waste Reduction

The newly added reduction for 2016 was 3,610 tons, reaching the targeted goal, which is equivalent to a savings of about NT$ 16.6 million in annual treatment costs.

89% Waste Recycling

The amount of reused waste was 31,754 metric tons, which is a gain of more than NT$53 million from recycled resources.

67%% Reduction in Workplace Accidentsa

18 less accidents compared to the reference basis year of 2011 and achieved a savings of NT$ 3.46 million in potential asset loss.

16,142People

16,142 people benefited from the 2016 volunteer work service.

100% Holistic Health Management Program

Created a safe working environment, and protected health and work-life balance of employees

< 5% on the Annual EICC Labor / Ethics Risk Index

In 2016, the EICC labor /ethics risk index was less than 5.

100% Communication Meetings were Completed

By the end of 2016, a total of 119 sessions of company-wide forums (4 sessions), fab communication meetings (71 sessions), secretary forums (8 sessions), labor-management conferences (32 sessions), and benefits committee meetings (4 sessions) were conducted.

0% Labor Dispute

Actively promoted harmonious labor relations to reduce the likelihood of labor conflict. In 2016, there was no case of labor dispute.